Device for setting and locking the reverse mechanism of locomotives.



J. J. BRIGGS. ND LOOKING THE REVERSE MECHANISM OF L ocomowlvns.

mm r011 SETTING A r o APYLIOATIQN FILED NOV. 15, 1912.

Patented Feb. 3, 1914;

.H/IVI M DEVICE FOR is the m. with. my invemion muted 1 LL detail in ve anv n in t Like Charm? @"5" re pans throughout the in? :zxected .vi (la-i; by means (3 w invanz'iion relatzb m me 7 0 connecting roci 1 l locking ii; in.

pvsi'aic'n, by the aid of steam 02' 5- ai compelling v y device cnmpi'xshu c) 45 which is a reciprocating piston 8 on a piston rod 9, terminating baud l0 oysrating between guides cross head. 10 is pivoially GORP-EC rod 6, and through the latter. 50 versin mechanism absve; de' Mi from t 1e boiler, or c'ompressed n sup 1y used in the air brake tha. pips 1w;

rem e essury to provide A positive locking means l changes in for-"i, con

to hold the diflerent sdjustnients, and this ll'lfillt, the or on must be automatically controlled so as no and the substitution r Gt'LliViiiQniS, operate in time with the. reverse mechanism. eurnstances may necessity *r For this purpose I utilize the exl'mnst. from expedic the vulve 123 which is received into the pipe i I cls ip 70 21 and is discharged into cylinder 2%. l 1. In e device-r01" moving and holding the Operating in the cylinder 2% is a piston 25 reverse mechanism of a locoi'notive, s. cylwhich is forced down by the steam (or air) inder, a piston therein, piston-rod, means in supplied through pipe 21 to the upner end connecting the piston-rod and reverse or the cylinder as shown in Fig. A rod snism, means for automatically lock ng the 76 26 fronrpiston terminates outside 01" the reverse mechanism, eans actuated. hy an cylinder in a head 27, operating in suitable ezrpsnsive fluid for nlocliing it, s. valve, guides, and slotted. Through the slot in means for supp expansive fluid the head 27 n. flattened portion 28 of the pisvalve, conduits ton 9 is passed. The bottom oi? the slot in valve into opposite end cl. cy the llGzlCl 27 is provided with. o. of teeth certs-in posi ns the v l which are adopted to with corr discharging lioin. soi spending teeth in the lo rer or adjacent ing inc-ans etcerfisin otner'po so edge of the flattened portion 28 of the pisvalve. v

ton rod 9. A spring 29 in the cylinder 2 2. in a 'evice for and locking the 36 norl'nnlly raises the piston'25 and through. it reverse cchsnisni of a. locomotive, s c rithe piston rod. so and the heed 27 bringing incler, a piston, e piston-rod, means cor i the teeth in the head into looking" ening the piston-rod and reverse 2o gngen ent with the teeth on the port 28 on means for lockin the reverse the piston rod. 9. means actuated by on expensive fluid ior run 90 l hen steam (or compressed air) is zidlooking it, n foursvsy valve, means for supinitted under pressure through pipe the l plying an expensive iluid "to the valve, conpiston is lowered, compresslng spring 29 dnits discharging "iron: the valve into op- 3c and lowerin head 27 and releasing the pisposite. ends of she cylinder certain positon rod 9. The piston 25 moves down until tions of the valve, and a. conduit discherg 95 s. port in the side of the cylinder 24-, noring from said valve to said unlocking; means inslly closed by the piston 25, is opened by at certain other positions of the valve. the lowering of the piston 25, and thsrs- In device for se'cl'ng locking the upon the steam (or air) is allowed to escape reverse mechanism of n locomoiive, cylto atmosphere and the pressure on the pisinder, a piston, means connect? piston 1w ton removed. The spring 29- then sets to "and. the reverse inechzn 'sm, 5 raise the piston 25, and any remaining steam ing indentations, second cylinder, 21 pis- (or air) in the piston is permitted to ton therein, carried by the lost Dist/on cape through very much smaller port openhaving means to engage indentations of ing 31 in the end of the cylinder. i said connecting means, sniioroc'cic means to o, means hav- By the above described mechanism steam. effect said, engagement, valve, means for (or air) may he admitted to the cylinder 7 supplying an expansive rid e valve, in, will to move the piston 55. This is acconduit-s discharging fror" u evolve into 0};- coniplished by moving the valve 15, which posits ends of said first cylinder certain at once admits steam to the pipe 21 and positions of the valve, and a conduit disthence to cylinder 24:, unlocking the piston charging from said valve to econd cylrod '9 and then the pressure in the cylinder inder at other posi'ions oi: lhe v:: a. Y inovi Q the piston 8 will ope etc the conl. in :i cvice "for setting and loo so netting rod (3 to actuate the valve reversing reverse mechnnisln of low ng-give, 31. 1

IDQClHDlSHi oi the engine and the valve 15 inder. a piston, means connecting the piston being returned to the position shown in Fig. and the reverse mechanism, said. mean im- 2 cutting oil the steam supply to cylinder 2%, l ing indentations, e. second cylinder having releases piston 25 and the latter raised h 1 an exhaust port, in its'side and a smaller e l l l l l l l l l the spring 29 cmising the toothed hcutl 27 to hnust, in its end, a piston in the second cylengug'e the toothed member 28. thereby inder closing and opening the .ch.znist; port rig-grin lcclringthcreversing mechmiisni. by the travel of said piston. a spring to While I have described, my invenlion with press the piston outwardly, e 'pisron rod, more or less Ilill'llliQllQSS as regards details oi ineans on said rod engage the indenteconstruction and arrmigemcnt and as being tions of connect-ion hetivcen the first ernhodicil in ertain pref. we terms. 5 do not piston and reverse mechanism when the pisdesire to be limited thereto unduly or any l I more than is points l out in the claims. On the contrary, contoinpluie ull proper duit dischar ing from the valve to the 03% this 11th day 1f November, Al D. one thouposite ends 0 said first cylinder at certam sand nine hundred and twelve.

positions of the valve and the conduit dis. 1 charging from said valve to the second yl- JOHN 5 inder at other positions of the valve. Vitnesses:

In witness, whereof, I have hereunto set F. W. Wommm,

my hand and sal at Indianapalis, Indiana; IDA L. LARSON 

